Use CLOCK_MONOTONIC for all our timing needs, when possible

[secnet.git] / secnet.c

diff --git a/secnet.c b/secnet.c
index e15ee8156f7f78e4b9ac25f63c36d7610bf55457..177c2ef893bb459c67a387d3410c9a736c82f9d4 100644 (file)
--- a/secnet.c
+++ b/secnet.c
@@ -24,6 +24,7 @@
 #include <string.h>
 #include <getopt.h>
 #include <errno.h>
+#include <time.h>
 #include <unistd.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>
@@ -356,9 +357,18 @@ static void run(void)
     int allocdfds=0, shortfall=0;
 
     do {
+#if USE_MONOTONIC
+       struct timespec ts;
+       if (clock_gettime(CLOCK_MONOTONIC, &ts)!=0) {
+           fatal_perror("main loop: clock_gettime(CLOCK_MONOTONIC,)");
+       }
+       tv_now_global.tv_sec =  ts.tv_sec;
+       tv_now_global.tv_usec = ts.tv_nsec / 1000;
+#else /* !USE_MONOTONIC */
        if (gettimeofday(&tv_now_global, NULL)!=0) {
            fatal_perror("main loop: gettimeofday");
        }
+#endif /* !USE_MONOTONIC */
        now_global=((uint64_t)tv_now_global.tv_sec*(uint64_t)1000)+
                   ((uint64_t)tv_now_global.tv_usec/(uint64_t)1000);
        idx=0;